$this->assertTrue($propertyMappingConfiguration->getConfigurationValue(\TYPO3\CMS\Extbase\Property\TypeConverter\PersistentObjectConverter::class, \TYPO3\CMS\Extbase\Property\TypeConverter\PersistentObjectConverter::CONFIGURATION_MODIFICATION_ALLOWED), 'ConfigurationValue is not CONFIGURATION_MODIFICATION_ALLOWED at line ' . __LINE__);